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Acetylacetone Structure

Acetylacetone

Chemical Properties

Melting point -23 °C (lit.)
Boiling point 140.4 °C (lit.)
Density  0.975 g/mL at 25 °C (lit.)
vapor density  3.5 (vs air)
vapor pressure  6 mm Hg ( 20 °C)
refractive index  n20/D 1.452(lit.)
Flash point 66 °F
storage temp.  Store below +30°C.
solubility  H2O: soluble1 in 8 parts
pka 8.9(at 25℃)
form  Liquid
color  very deep green-yellow
Relative polarity 0.571
PH 6 (200g/l, H2O, 20℃)
Odor pleasant odor
explosive limit 2.4-11.4%(V)
Evaporation Rate 0.75
Relative density, gas (air=1) 3.5
Water Solubility  16 g/100 mL (20 ºC)
Merck  14,81
BRN  741937
Exposure limits No exposure limit has been set.
InChIKey YRKCREAYFQTBPV-UHFFFAOYSA-N
LogP 0.68 at 20℃
Indirect Additives used in Food Contact Substances 2,4-PENTANEDIONE
FDA 21 CFR 175.105
CAS DataBase Reference 123-54-6(CAS DataBase Reference)
EWG's Food Scores 2
FDA UNII 46R950BP4J
NIST Chemistry Reference Acetylacetone(123-54-6)
EPA Substance Registry System Acetylacetone (123-54-6)

Safety

Symbol(GHS)
Signal wordDanger
Hazard statements H226-H302-H311+H331
Precautionary statements P210-P280-P301+P312+P330-P302+P352+P312-P304+P340+P311
Hazard Codes  Xn,Xi
Risk Statements  11-36/37/38-22-10-R22-R10-20/21/22-2017/10/22
Safety Statements  21-23-24/25-36-26-S24/25-S23-S21
RIDADR  UN 2310 3/PG 3
WGK Germany  1
RTECS  SA1925000
9-23
Autoignition Temperature 662 °F
TSCA  Yes
HS Code  2914 19 90
HazardClass  3
PackingGroup  III
Hazardous Substances Data 123-54-6(Hazardous Substances Data)
Toxicity LC50 (4 hrs) in rats: 1000 ppm (Carpenter)
NFPA 704:
3
2 0

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